Water is leaking from the outside of the evaporative cooler
Water should come from the bleed hose, but it should not come from anywhere else. With some designs of cooler it can be difficult to stop water leaks from around the pad frame. If there is Salt On the pad frame try cleaning it off. Cheek that there are no pieces of woodwool Striking out from the frame. Make sure thal the pad frames are securely in place. Check that the cooler is level. Check that the water level is not set too high.